<!--
 * Tencent is pleased to support the open source community by making BK-JOB蓝鲸智云作业平台 available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-JOB蓝鲸智云作业平台 is licensed under the MIT License.
 *
 * License for BK-JOB蓝鲸智云作业平台:
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
-->

<template>
    <div v-bkloading="{ isLoading }">
        <bk-select
            ref="select"
            v-bind="$attrs"
            :clearable="false"
            :value="value"
            @change="handleChange"
            @toggle="handleClick"
            ext-popover-cls="account-select-menu-list"
            searchable>
            <template v-for="option in accountList">
                <auth-option
                    :key="option.id"
                    :id="option.id"
                    :name="option.alias"
                    :permission="option.canUse"
                    :resource-id="option.id"
                    auth="account/use">
                    <div>{{ option.alias }}</div>
                </auth-option>
            </template>
            <template slot="extension">
                <auth-component auth="account/create">
                    <div @click="handleCreate" style="cursor: pointer;">
                        <i class="bk-icon icon-plus-circle mr10" />{{ $t('新增.action') }}
                    </div>
                    <div slot="forbid">
                        <i class="bk-icon icon-plus-circle mr10" />{{ $t('新增.action') }}
                    </div>
                </auth-component>
            </template>
        </bk-select>
    </div>
</template>
<script>
    import AccountManageService from '@service/account-manage';

    const ACCOUNT_SELECT_LAST = 'ACCOUNT_SELECT_LAST';

    export default {
        props: {
            value: {
                type: [
                    Number, String,
                ],
            },
            type: {
                type: String,
                validator: value => [
                    'system', 'db',
                ].includes(value),
            },
        },
        data () {
            return {
                isLoading: false,
                wholeList: [],
                systemAccountList: [],
                dbAccountList: [],
            };
        },
        computed: {
            /**
             * @desc 页面展示的账号列表
             */
            accountList () {
                if (this.type === 'system') {
                    return this.systemAccountList;
                }
                if (this.type === 'db') {
                    return this.dbAccountList;
                }
                return this.wholeList;
            },
        },
        watch: {
            /**
             * @desc 账号类型改变时重新显示账号列表
             */
            type () {
                this.initDefaultAccount();
            },
        },
        created () {
            this.fetchAppAccount();
        },
        methods: {
            /**
             * @desc 获取完整的账号列表
             */
            fetchAppAccount () {
                this.isLoading = true;
                AccountManageService.fetchAccountWhole()
                    .then((data) => {
                        const systemAccountList = [];
                        const dbAccountList = [];
                        data.forEach((account) => {
                            if (account.isSystem) {
                                systemAccountList.push(account);
                            } else {
                                dbAccountList.push(account);
                            }
                        });
                        this.systemAccountList = Object.freeze(systemAccountList);
                        this.dbAccountList = Object.freeze(dbAccountList);
                        this.wholeList = Object.freeze(data);
                        this.initDefaultAccount();
                    })
                    .finally(() => {
                        this.isLoading = false;
                    });
            },
            /**
             * @desc 账号列表的默认选中值
             */
            initDefaultAccount () {
                // 编辑状态
                // 现有账号不存在于当前账号列表中默认重置为空
                if (this.value) {
                    if (!this.accountList.find(item => item.id === this.value)) {
                        this.handleChange('');
                    }
                    return;
                }

                // 新建状态
                // 1，有缓存使用缓存
                const cacheAccountId = ~~localStorage.getItem(ACCOUNT_SELECT_LAST);
                if (cacheAccountId) {
                    if (this.accountList.find(item => item.id === cacheAccountId)) {
                        this.handleChange(cacheAccountId);
                        return;
                    }
                }
                // 2，查找是否有root账号
                const rootAccount = this.accountList.find(item => item.alias === 'root');
                if (rootAccount) {
                    this.handleChange(rootAccount.id);
                    return;
                }
                
                // 3，使用第一个账号
                const [firstAccount] = this.accountList;
                if (firstAccount) {
                    this.handleChange(firstAccount.id);
                }
            },
            /**
             * @desc 跳转到创建账号页面
             */
            handleCreate () {
                const { href } = this.$router.resolve({
                    name: 'accountList',
                });
                this.$refs.select.close();
                window.open(href);
            },
            /**
             * @desc select 的下面板展开时重新获取最新账号数据
             * @param {Boolean} toogle 下拉面板的展开收起状态
             */
            handleClick (toggle) {
                if (toggle) {
                    this.fetchAppAccount();
                }
            },
            /**
             * @desc 用户选中账号
             * @param {Number} 选中的账号ID
             */
            handleChange (value) {
                if (value === this.value) {
                    return;
                }
                localStorage.setItem(ACCOUNT_SELECT_LAST, value);
                this.$emit('input', value);
                this.$emit('change', value);
            },
        },
    };
</script>
